MTI INDUSTRIES
PROPANE GAS ALARM
MODELS 30-441-P and 30-442-P
USER’S MANUAL
IMPORTANT
PLEASE READ CAREFULLY
This manual contains important information.
Purchasers who install this unit for use by others
must leave this manual with the owner.
Do not throw out.
U LISTED
L
R
Manual #304298-7
SINGLE STATION PROPANE ALARM SUITABLE
FOR USE IN RECREATIONAL VEHICLES
FILE NO. E151570
IMPORTANT: Always follow the operation and safety
instructions of the gas appliance manufacturer.
! WARNING
CONNECT ONLY TO WIRING THAT CANNOT
BE TURNED OFF BY A WALL SWITCH OR
GROUND FAULT PROTECTOR.
IMPORTANT: Failure to follow the installation
instructions may void the warranty.
SPECIAL FEATURES OF THE
MTI INDUSTRIES ™ GAS ALARMS
This MTI Industries ™ propane gas alarm is listed by
Underwriters Laboratories, Inc. for use in recreational
vehicles. Other explosive gases detected but not tested by
Underwriters Laboratories include Acetone, Alcohol,
Butane, Gasoline all of which you may have in your
Trailer, Truck Camper, Van Camper or Motorhome.
When dangerous levels of propane gas (< 25% LEL) are
detected the alarm signal will activate. A reset/mute circuit
can be activated to temporarily silence the alarm while you
ventilate.
RECOMMENDED WIRE GAUGE....................14 GA.
POWER SUPPLY..............................................12 vDC
WIRE COLOR CODE:
RED SUPPLY (+)
BLACK GROUND (-)
FUSED CIRCUIT MAXIMUM.......................15 AMP
!
WARNING
LIMITATIONS OF
PROPANE GAS ALARMS
are in separated areas, MTI recommends installing an
alarm in each area. See Figure 1 and 2.
THIS UNIT will not work without power. Examples
causing no power are: Cut lead wires, faulty circuit
connection, a blown or missing fuse, improper supply
(+) or ground (-) connections.
CAUTION: Propane is heavier than air. For
propane gas detection, install this alarm from 4 to
20 inches off the floor.
This alarm will only indicate the presence of propane
gas at the sensor. Explosive gas may be present in
other areas. If you smell unusual odors you may have
a gas leak. Immediately call a local propane gas
supplier or fire department to check for possible
leaks.
This alarm may not be heard. The alarm loudness
meets or exceeds regulatory standards. However, if
this alarm is in remote locations or behind closed
doors the alarm may not be heard. Persons who are
hard of hearing may not hear the alarm.
This alarm is not a smoke/fire alarm. It is also not a
carbon monoxide alarm.
This alarm is not suitable for installation in hazardous
areas as defined in the National Electrical Code.
HOW TO TAKE CARE OF YOUR ALARM
To keep your alarm in good working order, you must;
 Test
the
alarm
weekly.
(See
“TEST
PROCEDURE”)
 Do not block or cover the alarm with any object that
can prevent a gas leak from reaching the sensor.
 Observe the color of the indicator light on the front
of the unit regularly. (See “Operating Instructions”)
 Vacuum the dust off the alarm cover weekly,
(more frequently in dusty locations), using the soft
brush attachment of your vacuum.
 Clean the alarm cover weekly. Hand wash using a
damp cloth, or paper towel. Dry with a soft cloth.
 DO NOT SPRAY CLEANING AGENTS OR
WAXES directly onto the front panel. This action
may damage the sensor, cause an alarm or cause an
alarm malfunction.
WHERE TO INSTALL GAS ALARMS
This alarm is UL® listed for installation in recreational
vehicles. Install this alarm near sources of a potential
gas leak. Some potential sources are a furnace, water
heater, stove or oven. If potential sources of a gas leak
!
Figure 1
WARNING
WHERE NOT TO INSTALL THIS GAS ALARM.
See Figure 3.

BEHIND
FURNITURE,
DRAPES,
IN
CLOSETS OR AREAS THAT WILL BLOCK
AIR FLOW TO THE ALARM.

WITHIN 12 INCHES OF EXTERIOR DOORS,
WINDOWS, HEATING OR RETURN VENTS,
OR OTHER DRAFTY AREAS.

Figure 2
IN OR ON OUTSIDE WALLS

TO A WALL SWITCH CONTROLLED
POWER LINE, GROUND FAULT CIRCUIT
OR CIRCUIT BREAKER. See Master Storage
Switch on front Panel
NOTE: Older homes and RVs may have little or no
insulation and therefore are more drafty. Carefully
consider mounting locations.
INSTALLATION INSTRUCTIONS
Power Supply 12 vDC. Connect the alarm to a
properly fused circuit. All connections must be in
accordance with the National Electrical Code.
DO NOT INSTALL
Figure 3
D o not insta ll w ithin
1 2 " of a door
D o not insta ll w ithin 1 2 " of
a w indow tha t c a n ope n
CAUTION:
ONLY
USE
UL®
APPROVED
CONNECTORS. DISCONNECT POWER UNTIL THE
INSTALLATION IS COMPLETE
30-441/442-P: REFER TO (“WHERE TO AND NOT
TO INSTALL GAS ALARM”) connect the RED (+)
power lead to the fused circuit. Connect the BLACK
lead to Ground (-). Fasten the unit to the wall using the
two screw holes located on the ends of the case.
Reconnect the power supply.
30-442: REFER TO (“WHERE TO AND NOT TO
INSTALL GAS ALARM”). This model requires a 1”
clearance to recess the case. Cut a 5 3/8” W x 2” H hole.
Connect the RED (+) power lead to the fused circuit.
Connect the BLACK lead to Ground (-). Fasten the unit
to the wall using the two screw holes located on the ends
of the case. Reconnect the power supply.
D o N ot insta ll be hind
dra pe s or furniture
D o not insta ll
w ithin 1 2 " of v e nts
OPERATION
! WARNING: This alarm cannot detect propane gas
or sound the alarm for two minutes after it has been
turned on.
POWER ON: When powered the LED color will be
Green (Operational).
TESTING
! WARNING: TEST THE OPERATION OF
THIS ALARM AFTER THE RECREATIONAL
VEHICLE HAS BEEN IN STORAGE, BEFORE
EACH TRIP AND AT LEAST ONCE PER WEEK
DURING USE.
WARNING: THE TEST BUTTON ONLY TESTS
THE ALARM CIRCUIT, NOT THE SENSOR. YOU
MAY USE PROPANE OR BUTANE GAS TO TEST
THE SENSOR. REPLACE THE ALARM AFTER 5
YEARS.
Simply press the Test/Mute switch at any time the alarm
is powered. The LED should turn RED and the alarm
should sound. Release the switch.
IMPORTANT - If this alarm does not test properly
return it immediately for repair or replacement.
ALARM SIGNAL
The Green LED will turn Red and the audible signal will
activate whenever the level of propane gas exceeds the
alarm threshold. The unit will continue to alarm until the
gas clears or the Mute switch is pressed. See
(Procedures To Take During An Alarm and Alarm
Signal Mute sections)
ALARM SIGNAL MUTE
Press the TEST-MUTE button when the detector is in
alarm. 1. The audible alarm signal will stop, 2. the RED
Alarm LED will remain on until the gas has dropped
below the alarm point at which time the LED will turn
Green, 3. If dangerous gas levels remain after the end of
the Mute cycle (about 90 seconds) the alarm will reactivate.
MALFUNCTION ALARM
A fault in the sensors operation will activate the
malfunction alarm. The LED will turn Yellow and the
sounder activate.
IMPORTANT: In the event of a malfunction alarm
immediately remove the alarm and return it for repair or
replacement. Do not use your RV without a working
Gas Alarm installed.
LOW POWER OPERATION
This alarm will operate normally down to 8 vDC. Do
not operate this alarm below 8 vDC.
End of Life Signal –Sensor has a 5 Year Service Life
All 30-441/442-P models include an End of Life (EOL)
Signal indicating the sensor has reached the end of its
service life and you must replace the alarm. The signal is
the LED flashing RED RED GREEN GREEN with a
beep every 25-30 seconds. The EOL Signal may be reset
by pushing TEST / RESET button on the alarm. This
will reset the EOL Signal for a period of 72 hours (3
days) for a total of up to 30 days. After 30 days the
signal cannot be reset and the alarm must be replaced.
DO NOT DISCONNECT THE ALARM UNTIL YOU
HAVE A REPLACEMENT ALARM AVAILABLE TO
INSTALL.
PROCEDURES TO TAKE DURING AN ALARM
1. TURN OFF ALL GAS APPLIANCES, (STOVE,
HEATERS, FURNACE), EXTINGUISH ALL
FLAMES AND SMOKING MATERIAL.
EVACUATE THE UNIT, LEAVE DOORS
AND WINDOWS OPEN.
2. TURN OFF THE PROPANE TANK VALVE.
3. DETERMINE AND REPAIR THE SOURCE
OF THE LEAK. SEEK PROFESSIONAL
HELP IF NECESSARY.
CAUTION - DO NOT RE-ENTER UNTIL THE
PROBLEM IS CORRECTED.
TROUBLE SHOOTING GUIDE
PROBLEM
CAUSE AND SOLUTION
LED OFF
CONNECTION
1. FAULTY WIRE
2. REVERSE POLARITY
3. BAD OR MISSING FUSE
4. DEAD BATTERY
NO SOUND IN TEST 1. RETURN IMMEDIATELY
NO RED LED
IN TEST
1. RETURN IMMEDIATELY
ALARMS AFTER
1. CONTAMINATED SENSOR
WARM UP WITH
PRESS TEST MUTE SWITCH
OUT GAS PRESENT
AND WAIT 90 SECONDS
AUDIBLE ALARM
WITH YELLOW LED
NO RESET
1. RETURN IMMEDIATELY
LED AND SOUNDER SIGNALS
SPECIFICATIONS
POWER SUPPLY
12 vDC
OPERATIONAL VOLTAGE
8-16 vDC
CURRENT DRAW
90 mA @ 12 vDC
OPERATIONAL TEMPERATURE
O
o
-31 F to 150 F
o
o
-35 C to 66 C
RELATIVE HUMIDITY
15% to 93%
OPERATION
NORMAL
85 dB @ 10 feet
VISUAL OPERATIONAL SIGNAL
VISUAL ALARM SIGNAL
VISUAL MALFUNCTION SIGNAL
GREEN
RED
YELLOW
ALARM TRIGGER < 25% of the LEL of Propane
CASE DIMENSIONS
30-441 Surface
6” W x 1 7/8” H x 1 1/4” D
30-442 Flush
6 3/8” W x 2 7/8” H x 1” D
CASE MATERIAL
Geon 3700
FLAME RATING
94-5VA
WARRANTY
1 Year Limited
TESTING LABORATORY
STANDARD
Underwriters
Laboratories
ANSI/UL1484, Fourth Edition
OWNERS REPLACEMENT RECORD
Replace this SAFE-T-ALERTTM propane alarm within 5
years, of the production date on the back of the alarm.
Production
Date____________________
Replace Date
____________________
Installer
________________________
NOTE: The replacement date indicates the date beyond
which the device may no longer detect accurately. The
alarm should be replaced immediately.
© 2011 MTI INDUSTRIES, INC.
VISUAL SIGNAL
NONE
STEADY GREEN
CONSTANT
FLASHING RED
BEEP” EVERY
30 SECONDS
ALTERNATING
RED/GREEN
“
PROPANE
ALARM
“
ALARM
MALFUNCTION
END OF LIFE
AUDIBLE OUTPUT
AUDIBLE SIGNAL
B BEEPS EVERY
25-30 SECONDS
FLASHING RED RED
GREEN GREEN
LIMITED WARRANTY
LIMITED PRODUCTS WARRANTY
MTI INDUSTRIES, INC. Warrants to the original
purchaser that this alarm will be free from defects of
material or workmanship for a period of one (1) year. If
defective in original materials or workmanship and
returned, delivery costs prepaid, MTI INDUSTRIES,
INC., will repair or replace this product free of charge.
LIMITS OF WARRANTY
Repair or replacement is your exclusive remedy under
this limited warranty or any other warranty (including
any implied warranty of merchantability for a particular
purpose).
Any and all implied warranties or
merchantability or fitness for a particular purpose is
limited to the warranty period from the original date of
purchase. MTI INDUSTRIES, INC., its dealers and
distributors shall in no case be responsible or in any
way liable for any incidental or consequential damages
for any reason. Some states do not allow the limitation
or exclusion of incidental or consequential damages, or
allow limitations on how long an implied warranty
lasts, so the above limitations may not apply to you.
This warranty gives you specific rights, and you may
also have other rights that may vary from state to state.
WARRANTY RETURN POLICY
Warning-opening this product for any reason voids
the warranty. There are no user serviceable parts in the
case. This alarm requires an authorization number (RA)
for repair or replacement. Call MTI for a RA number.
Pack the alarm carefully in a padded container. Include
the RA number, an explanation of the problem, the
original dated sales receipt, and your return address.
Send, shipping prepaid, to: MTI Industries, Inc. 31632
N. Ellis Drive Bldg. 301 Volo, IL 60073 Customer
Service Number:
800-383-0269
e-Mail:
info@mtiindustries.com Web: www.Safe-T-Alert.com